The Sleeping Giant: How the GSTP Could Redefine Global South Trade and Sustainable Growth

1. Introduction: A Once-in-a-Generation Trade Opportunity

“There is now a window of opportunity for the GSTP.” That assessment, delivered by UNCTAD Deputy Secretary-General Pedro Manuel Moreno, captures the rare convergence of political will, economic momentum, and institutional readiness around a three-decade-old agreement that is one ratification away from entering into force. Brazil’s 2022 commitment to ratify the Global System of Trade Preferences among Developing Countries (GSTP) has brought the accord to the threshold of implementation, with 42 member nations—representing 4 billion people and a combined market of $16 trillion—awaiting the final step.

The GSTP is not a new idea. It was conceived in 1988 under UNCTAD auspices as a framework for developing countries to exchange tariff preferences among themselves, reducing barriers that have historically been higher within the Global South than between North and South. Yet for decades it languished in bureaucratic inertia. Now, with Brazil’s ratification pending, the São Paulo Round Protocol—which contains the core tariff cuts—could finally become operational. The stakes are enormous: full implementation could unlock an estimated $14 billion in collective prosperity, tapping into a South-South trade dynamic that already grows at nearly twice the global average.

This article explores how the GSTP can catalyze sustainable and inclusive growth by leveraging existing sectoral complementarities and environmental goods. From agricultural trade that bolsters food security to tariff reductions on renewable energy equipment and natural plastic substitutes, the agreement offers a new paradigm for economic cooperation among developing countries. It also reshapes supply chains, reduces dependence on traditional North-South corridors, and provides a framework for addressing climate change and inequality simultaneously.

[IMAGE: A timeline graphic showing key milestones: GSTP founding (1988), São Paulo Round launch (2010), Brazil ratification (2022), projected entry into force (2024/2025).]

2. The GSTP at a Glance: Scale, Membership, and Governance

The GSTP currently includes 42 member countries from Africa, Asia, and Latin America—a constituency that spans over half the world’s population. Their combined market of $16 trillion accounts for roughly 20% of global merchandise imports, making the agreement potentially one of the largest trade blocs by population ever created. Critically, membership is open to all developing countries that are part of the Group of 77, meaning the agreement can expand without the rigid membership criteria typical of regional trade pacts.

Decision-making rests with the Committee of Participants, currently chaired by Argentina’s Ambassador Federico Villegas. “I plan to give the agreement new life by revitalizing its intergovernmental process,” Villegas said in a recent interview, signaling a push to modernize the GSTP’s governance. The Committee oversees the implementation of the São Paulo Round Protocol, which contains the specific tariff concessions negotiated among members. Once ratified by Brazil—the last required member—the protocol will enter into force, triggering phased tariff reductions on thousands of product lines.

The governance structure is intentionally light-touch: no permanent secretariat, no dispute settlement mechanism, and no binding enforcement. This has been both a weakness and a strength. It has kept ratification costs low and allowed political flexibility, but it also means the GSTP relies heavily on voluntary compliance and peer pressure. The renewed momentum under Villegas aims to address this gap by strengthening transparency and monitoring.

[IMAGE: A map highlighting 42 member countries with color coding by region (Africa, Asia, Latin America), and a callout box for the Committee of Participants led by Argentina.]

3. The Rise of South-South Trade: Growth, High-Tech, and Resilience

The GSTP does not operate in a vacuum. It sits atop a broader trend: South-South trade has been the fastest-growing segment of global commerce for two decades. According to UNCTAD, trade among developing countries grew at an average annual rate of 9.8% from 2000 to 2021, nearly double the 5.5% growth rate of world trade. In 2021, South-South trade reached $5.3 trillion—a volume that would make it the third-largest trading bloc in the world if counted as a single entity.

Perhaps more striking is the composition of that trade. Nearly 60% of developing countries’ high-tech exports now flow within the South—a sign that innovation geography is shifting. India exports pharmaceuticals to Brazil, China ships advanced machinery to Indonesia, and Mexico supplies electronics to Colombia. This is no longer a simple North-to-South flow of finished goods; it is a web of increasingly sophisticated intra-regional supply chains.

The GSTP can amplify this momentum by tackling a persistent anomaly: tariffs among developing countries remain substantially higher than those in North-South free trade agreements. For example, average tariff rates on agricultural goods within the Global South are often double or triple those applied to imports from developed nations. The GSTP’s tariff cuts, once implemented, would directly reduce these costs, making South-South trade more competitive.

As former Brazilian Finance Minister Rubens Ricupero observed, “South-South trade has become one of the main forces responsible for growth and development.” The GSTP provides the institutional scaffolding to sustain that force.

[IMAGE: A bar chart comparing annual growth rates of South-South trade (9.8%) vs. world trade (5.5%) from 2000-2021, and a pie chart showing high-tech exports share within the South (60%).]

4. Sectoral Complementarities: Agriculture and Food Security

One of the most compelling arguments for the GSTP is its potential to address food security—a perennial challenge for developing countries. GSTP members possess natural complementarities in agricultural production. South America is a powerhouse of oil seeds, meats, and cereals; India is the world’s leading exporter of rice, crustaceans, tea, and spices; Morocco exports fish, vegetables, sugar, and honey; and Southeast Asian members supply tropical fruits, palm oil, and rubber.

Currently, much of this agricultural trade is subject to significant tariff burdens when exchanged among GSTP members. The São Paulo Round Protocol includes broad tariff cuts on agricultural goods, which would lower input costs for food processors and reduce retail prices for consumers. For countries facing recurrent food price spikes or supply disruptions—from drought in East Africa to fertilizer shortages in South Asia—preferential access to grains and proteins from fellow developing nations offers a buffer against global commodity volatility.

Moreover, the GSTP can encourage food trade that is more climate-resilient. By sourcing from geographically proximate producers, developing countries can shorten supply chains, reduce transport emissions, and avoid the risks associated with long-distance shipping—particularly relevant for perishable goods. Agricultural diversification under the GSTP also reduces dependence on a handful of global grain exporters, enhancing systemic stability.

[IMAGE: A split infographic showing major agricultural trade flows between GSTP regions: e.g., South America → Africa (soybeans), India → Middle East (rice), Morocco → West Africa (fish).]

5. Renewable Energy Equipment and the Green Economy

The GSTP’s potential extends directly into the climate agenda. Developing countries are both the fastest-growing sources of greenhouse gas emissions and the most vulnerable to climate impacts. Yet the transition to renewable energy is hampered by high costs and tariff barriers on clean technology components. Solar panels, wind turbines, lithium-ion batteries, and electric vehicle parts are often subject to higher tariffs within the Global South than in developed economies.

The GSTP offers a mechanism to dismantle those barriers. By extending tariff preferences to renewable energy equipment—many of which are produced in member countries such as China (solar cells), India (wind turbine components), Brazil (biofuels technology), and South Africa (solar thermal)—the agreement can lower the cost of green infrastructure deployment. Lower input prices mean faster construction of solar farms, more affordable rooftop panels, and greater access to battery storage for off-grid communities.

This is not merely an environmental argument; it is an economic one. The International Renewable Energy Agency (IRENA) estimates that every dollar invested in renewable energy in developing countries yields three to four dollars in economic returns through job creation, energy security, and health benefits from reduced air pollution. The GSTP can act as a catalyst, accelerating the deployment of these technologies by reducing transaction costs and fostering intra-regional supply chains for green goods.

[IMAGE: A diagram showing tariff reduction flow: a solar panel manufactured in China, exported to India with GSTP preferential tariff, then assembled into a system for installation in Kenya. Labels show tariff percentage before and after GSTP.]

6. Natural Plastic Substitutes: A Win for Trade and Environment

Another underappreciated sectoral opportunity lies in natural plastic substitutes. Developing countries dominate the production of materials such as bamboo, jute, coir, sisal, and natural rubber—all of which can replace petroleum-based plastics in packaging, construction, and textiles. Yet these alternatives often face tariff barriers that make them uncompetitive compared to synthetic plastics, many of which are subsidized or tariff-free under existing trade rules.

The GSTP can level the playing field. By reducing tariffs on natural plastic substitutes, the agreement encourages a shift away from fossil-fuel-derived plastics, addressing both the plastic pollution crisis and the carbon footprint of manufacturing. For example, India and Bangladesh are leading exporters of jute products; Thailand and Vietnam produce natural rubber; Ecuador and Kenya grow bamboo for composite materials. Preferential tariffs within the GSTP would make these products cheaper for importers in other developing countries, creating a virtuous cycle of demand and innovation.

This aligns with the growing global push for a plastics treaty and corporate commitments to circular economy. The GSTP offers a practical, trade-based tool to accelerate the transition without waiting for multilateral consensus. As Ambassador Villegas noted, “We need to make the agreement relevant to the challenges of our time—climate, pollution, inequality.” Natural plastic substitutes are a concrete example of how trade preferences can serve environmental goals.

[IMAGE: A product flow map: raw materials (bamboo from China, jute from Bangladesh, natural rubber from Thailand) being processed and exported to other GSTP countries (e.g., India, Brazil) with a "GSTP preferential tariff" label, and final products like biodegradable packaging or furniture.]

7. Challenges and the Path Forward

Despite its promise, the GSTP faces substantial hurdles. Only 42 of the 134 Group of 77 members have joined; many large developing economies—including Mexico, South Africa, and Saudi Arabia—remain outside. The São Paulo Round tariff cuts, while meaningful, are relatively modest compared to the deep liberalization seen in regional trade agreements. Moreover, the absence of binding enforcement mechanisms means that preference utilization rates have historically been low, as private sector actors often lack awareness of the tariff preferences available.

Revitalizing the GSTP will require more than formal ratification. It demands active promotion by trade ministries, customs modernization to facilitate preference claims, and engagement with business associations to inform exporters of the cost savings. UNCTAD has proposed a “GSTP plus” vision that would expand product coverage, include services trade, and integrate digital trade facilitation measures. Some members have also called for linking GSTP preferences to sustainable development standards, such as requiring compliance with labor or environmental criteria—a contentious idea that could alienate certain members.

The payoff is worth the effort. A fully functional GSTP, operating alongside existing South-South initiatives like the African Continental Free Trade Area (AfCFTA) and the Regional Comprehensive Economic Partnership (RCEP), could create a layered network of trade preferences that lowers costs, reduces vulnerability to external shocks, and channels investment into sustainable sectors.

In the final analysis, the GSTP is not a silver bullet. But it is a sleeping giant—one that, with the final ratification and a renewed political will, can redefine how developing countries trade with each other. As the world grapples with food insecurity, climate change, and fracturing global supply chains, the GSTP offers a homegrown solution rooted in the realities of the Global South. It is time to wake the giant.

[IMAGE: A graphic showing a "GSTP dashboard" with key indicators: 42 members, $16 trillion market, 4 billion population, $14 billion potential gains, pending ratification by Brazil.]